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Klaus Trainer commented on COUCHDB-642:
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A use case where being able to specify the revision number as query parameter makes quite
a lot of sense is adding an attachment to an existing document, e.g.
curl -X PUT http://127.0.0.1:5984/db/doc/attachment?rev=29-6f2ae59d419ed641b59cad675dbaf36c
--data-binary @/home/fooman/Videos/foovie.vob -H 'Content-Type: video/mpeg
> Support rev in PUT URL
> ----------------------
>
> Key: COUCHDB-642
> URL: https://issues.apache.org/jira/browse/COUCHDB-642
> Project: CouchDB
> Issue Type: New Feature
> Components: HTTP Interface
> Environment: trunk 08 Feb 2010
> Reporter: Brian Candler
> Priority: Minor
> Attachments: 0001-Allow-for-the-current-revision-number-to-be.patch
>
>
> A DELETE request lets you append ?rev=xxxx to the URL. But this doesn't work with a PUT
request; you have to put the _rev in the body instead (even though the _id is taken from the
URL path)
> $ curl -X PUT -d "{}" http://brianadmin:brianadmin@127.0.0.1:5984/briantest/foo
> {"ok":true,"id":"foo","rev":"1-967a00dff5e02add41819138abb3284d"}
> $ curl -X PUT -d "{}" http://brianadmin:brianadmin@127.0.0.1:5984/briantest/foo?rev=1-967a00dff5e02add41819138abb3284d
> {"error":"conflict","reason":"Document update conflict."}
> $ curl -X PUT -d '{"_rev":"1-967a00dff5e02add41819138abb3284d"}' http://brianadmin:brianadmin@127.0.0.1:5984/briantest/foo
> {"ok":true,"id":"foo","rev":"2-7051cbe5c8faecd085a3fa619e6e6337"}
> Allowing ?rev in the URL would make PUT and DELETE more consistent, and would allow you
to replace an existing JSON doc with another one without having to merge the _rev into it
first.
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